Visitor profile will now show the first visit the use made (within the profile limit)
@mattab I've now adjusted the PR to show the very first visit in the visitor profile. Feel free to review ;-)
LGTM, re making the API public, unless it's useful to display in a report on it's own, seems better not to introduce new API. Plugin devs can always call it themselves, though maybe there's a use case out there for finding a user's first visit via the API...